package Thread;

public class Demo7 {



        public static void main(String[] args) throws InterruptedException {
            Thread t = new Thread(() -> {
                while (true) {
                    System.out.println("hello thread");
                    try {
                        Thread.sleep(1000);
                    } catch (InterruptedException e) {
                        throw new RuntimeException(e);
                    }
                }
            });
            // 这样的设置得在 start 之前进行
            // t.setDaemon(true);
            t.start();

            for (int i = 0; i < 3; i++) {
                System.out.println("hello main");
                Thread.sleep(1000);
            }
            System.out.println("main 结束");
        }
    }


